Answer:
A
Step-by-step explanation:
If x to the 12th power is divided by x to the 9th power:
Since they share same bases, and are being divided, it would be the same as x^{12 - 9), or x^{3}
Now, simply find the cube root of 125, which is 5.
Therefore, the number (x) must be equal to 5.
<em>Hope this helps! :)</em>
Answer:
16 - 2r
Step-by-step explanation:
2 times by 4 - 2r = -2 times by r + 5
6 + 4r = -2r - 10
Change the number to its partner.
6 + 10 = -2r - 4r
16 = 2r
So, the answer is 16 - 2r
2x - 3 [5x - 2(6-x)] =
2x - 3 [ 5x - 12 + 2x ] =
2x - 3 [ 7x - 12 ] =
2x - 21x + 36 =
-19x + 36